How to prevent Outlook from sending email when add-ins are not loaded

If you want to prevent Outlook from sending email when add-ins are not loaded, here is how you can do that. If you have some add-ins to customize the email or do something else, you must load those add-ins first. In such situations, you can turn this setting on to block the Outlook email client from sending any email until the add-ins are not loaded.

How to prevent Outlook from sending email when add-ins are not loaded

To stop Outlook from sending email when add-ins are not loaded, follow these steps:

1. Search for gpedit.msc and click on search result.
2. Navigate to Trust Center in User Configuration.
3. Double-click on the Block send when web add-ins can’t load setting.
4. Choose the Enabled option.
5. Click the OK button.

Let’s check out these steps in detail to learn more.

Note: In order to use this method, you must install the Administrative templates of Office.

To get started, you need to search for gpedit.msc and click on the individual search result to open the Local Group Policy Editor on your computer.

Once it is opened, navigate to the following path:

User Configuration > Administrative Templates > Microsoft Outlook 2016 > Security > Trust Center

In the Trust Center folder, you can find a setting called Block send when web add-ins can’t load. You need to double-click on this setting and choose the Enabled option.

Finally, click the OK button to save the change and restart the Outlook app.

However, if you want to send an email even when Outlook can’t load all the add-ins, you can open the same setting and choose the Not Configured option.

How to stop Outlook from sending email when add-ins are not loaded

To prevent Outlook from sending email when add-ins are not loaded, do the following:

1. Press Win+R to open the Run prompt.
2. Type regedit and hit the Enter button.
3. Click the Yes button.
4. Navigate to Microsoft\office\16.0in User Configuration.
5. Right-click on 0 > New > Keyand name it as outlook.
6. Right-click on outlook > New > Keyand name it as security.
7. Right-click on security > New > DWORD (32-bit) Value.
8. Set the name as onsendaddinswaitforload.
9. Double-click on it to set the Value data as 1.
10. Click the OK button and restart your computer.

To know more about these steps, read on.

First, press Win+R, type regedit and hit the Enter button. Then, click the Yes button in the UAC prompt to open the Registry Editor on your computer.

Following that, navigate to this path:

HKEY_CURRENT_USER\Software\Policies\Microsoft\office\16.0

Right-click on the 16.0 key, select New > Key and set the name as outlook.

Then, right-click on outlook > New > Key and name it as security. After that, you need to create a REG_DWORD value. To do that, right-click on security > New > DWORD (32-bit) Value and set the name as onsendaddinswaitforload.

Double-click on it to set the Value data as 1 and click the OK button.

Finally, restart your computer to get the change. However, if you want to set the factory defaults, you need to select the REG_DWORD value. To do that, right-click on onsendaddinswaitforload, select the Delete option and click the Yes button.

How do I disable Outlook Add-ins without opening Outlook?

As of now, there is no option to disable Outlook add-ins without opening the Outlook client on Windows 11 or Windows 10. Add-ins are a part of the Outlook client, and you must open the app to manage them as per your requirements. However, if you want to disable them in the regular way, you need to go to File > Manage Add-ins.

Read: How to turn off Message Preview in Outlook

How do I stop Outlook from displaying Add-ins?

You can manage the add-ins’ visibility from the management panel. For that, open Outlook and click on the File option. Then, select the Manage Add-ins option. Following that, you can add or remove ticks from the corresponding add-ins that you want to show or hide.

That’s all! Hope this guide helped.

Read: How to create a new Style Set in Outlook.